/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.shindig.protocol;

import org.apache.shindig.protocol.model.FilterOperation;

import java.util.Set;


/**
 * Implements the 'system' service operations for JSON/XML RPC
 */
@Service(name = "system")
public class SystemHandler {

  HandlerRegistry registry;

  public SystemHandler(HandlerRegistry registry) {
    this.registry = registry;
  }

  @Operation(httpMethods = "GET")
  public Set<String> listMethods(RequestItem request) {
    if ("protocol".equalsIgnoreCase(request.getFilterBy()) &&
        FilterOperation.equals == request.getFilterOperation() &&
      "REST".equalsIgnoreCase(request.getFilterValue())) {
      return registry.getSupportedRestServices();
    }
    return registry.getSupportedRpcServices();
  }
}
